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<h1>第三章：文档系统功能介绍</h1>
<h2>设置</h2>
<p>在右上角有一个设置按钮点击后可以设置阅读模式，目前有三个模式：默认、护眼、夜间</p>
<h2>搜索（暂不支持）</h2>
<p>数据关键词搜索文档</p>
<p><br/><br/><br/><br/></p>

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